Added Future[T] tests.

asyncdispatch2.nimble

@@ -22,6 +22,10 @@ task test, "Run all tests":
   exec "nim c -r tests/testtime"
   exec "nim c -r -d:release tests/testtime"
 
+  exec "nim c -r -d:useSysAssert -d:useGcAssert tests/testfut"
+  exec "nim c -r tests/testfut"
+  exec "nim c -r -d:release tests/testfut"
+
   exec "nim c -r -d:useSysAssert -d:useGcAssert tests/testdatagram"
   exec "nim c -r tests/testdatagram"
   exec "nim c -r -d:release tests/testdatagram"

tests/testfut.nim

@@ -0,0 +1,39 @@
+#              Asyncdispatch2 Test Suite
+#                 (c) Copyright 2018
+#         Status Research & Development GmbH
+#
+#              Licensed under either of
+#  Apache License, version 2.0, (LICENSE-APACHEv2)
+#              MIT license (LICENSE-MIT)
+
+import unittest
+import ../asyncdispatch2
+
+when defined(vcc):
+  {.passC: "/Zi /FS".}
+
+proc testFuture1(): Future[int] {.async.} =
+  await sleepAsync(100)
+
+proc testFuture2(): Future[int] {.async.} =
+  return 1
+
+proc testFuture3(): Future[int] {.async.} = 
+  result = await testFuture2()
+
+proc test1(): bool =
+  var fut = testFuture1()
+  poll()
+  poll()
+  result = fut.finished
+
+proc test2(): bool =
+  var fut = testFuture3()
+  result = fut.finished
+
+when isMainModule:
+  suite "Future[T] behavior test suite":
+    test "sleepAsync() test":
+      check test1() == true
+    test "Immediately completed asynchronous procedure test":
+      check test2() == true